Apparatus for handling unburnt clay pipes



- Jan. 27, 1931. w. H. MAYH'EW APPARATUS FOR HANDLING UNBURNT CLAY PIPES 'Filed July 12, i928 2 Sheets-She et" 1.

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Jan 27 1931'. w. H. MAYHEW APPARATUS FOR HANDLING UNBURNT CLAY PIPES Filed July 12, 1928 2 Sheets-Sheet 2 WITNESS Wade-(L.

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- WALTER H. MAYHEW, or TORONTO, onto:

(if? Q In! Am? APPARATUS m. nAnnnrNeuNsun-N'r CLAY urns f Applicationffil ed July 12, 1928. Serial No. 292,175; I i I ,Thisinvention is an improvement upon the for. rotation at a point below its horizontal apparatus shown and described in Letters center. 3 In this respect also the frame of my Patent of the United 'StatesNo. 1,395,588, present invention. differs, for itis trunnioned granted November 1, 1921, and consists in in the horizontal plane midway of its height. features of structure adapting the apparatus It is," however, so proportioned that when 55] to the handling of relatively small pipe, that swung from the vertical position in which in is to say, pipe of 12 to inches in diameter Figs. II, 'III,jand IV it isshown, to horizon i and 2 feet in length. The apparatus of the tal position, it will. in th'at positionbebal; L patent referred to is adapted to the handling anced, but if it be movedfrom such. hori-F 1 series if, of pipe of from 24 to 36 inches in diameter, zont'al position either way, itwill tend 'to YGQLV' and could not be economically used for the swing-toward vertical position in oneldirechandling of such smaller pipe as that now .tio n or' theothern In short, the center of contemplated, because it is incapable of sufi'igravity of the empty and unloadedsframe is cient rapidity of operation. to'the' left, as seen in Figs. II and'III'F 5 In the accompanying drawings the appa-V Associated with the swinging-cradle l are" or:

ratus ofmy present invention is illustrated. feed" tables equipped-with idly'turning roll Fig. I is a. view in plan from above; Fig. II, ers fi-"whose upper surfaces extend common I a'view in side elevation; F ig. III, a view in V plane,'and with suchplane the two] s'ets lof'f vertical and longitudinal section; and Fig. rollers 4 ofzthe swinging framel coincide as I go IV, a view in end elevation. the-cradle come's'to each ofits alternate ver As in the'Letters Patent alluded to above, tical-positi'ons. Secured to the" table frame "the apparatus of the present invention in-' are two cross bars 11 and 11 which areadapt cludes a cradle 1, mounted to rotate on a h0ried to serve as stops, and 'stay the cradle 1 in zontal axis, and is shown to be trunnioned in one or the otherof its two vertical positions.

25 opposite stationary supports 2. The axis of That is tosay, in the position in which the; 5

the cradle is a medial axis; that is to say, it radle 1 .isshown in the drawings,-the' corner is disposed in the interval between the planes portions 12" of the cradle rest upon the stop 2 which define the'opposite ends of the cradle. or bar 11, and inits inverted position, the The cradle consists of a suitable framework corner portions 12 of the cradle rest upon the .30 of cubical form, open on one side (the side to" stop 11.? Thus,.it will be seen that the stops 80. o

the left,Figs. I, II, and III), and'convenient- 11 and '11Cinsure the arrestpf the cradle 1y containing within the framework a block in either of its vertical positions. 7 or seat 3 of semi-cylindrical shape and of Figs; II, III,- and IVof the drawings such size as to'engage the cylindrical surface show a length of pipe P in position. in the of a length of pipe, and properly to support cradle, ready for inversion. The length of it in the manner presently to be described. pipe may be understood to be formed'of clay, This cradle is further provided at its opposite and to 'be'still in greenjthat is to say, in un ends, the top and bottom, as seen in Figs; I burnt" condition. In such condition-it is and III, with two sets of idly turning rollers frail, easily damaged, and must be handled 40 4. The faces of the rollers of each of these with care and with precision. Referring 90 two sets lie in common plane, and the two particularly'to Fig. III-the length of pipe is planes are spaced apart a distance slightly seen to be resting, flanged end down, upon a o greater than the over-all height of the length stool 6, with a cylindrical'boss 7 which-boss of pipe to be handled, together. with the v enters and fits snugly} within the bore of the blocks presently to be described. I flanged end. It is'upon such, a stool that the 95 In the frame of my earlier patent the seat length'of pipe comes from theshaping press, H for the pipe was within a limited space longiand it is the length of pipe so supported tudinally movable. This feature does not whichis to be inverted and without injury exist-in the frame of my present invention. brought. to rest-upon its smaller, opposite, The frame of my earlier patent was mounted .unflanged end.

Thestool 6 is provided on its under surface with strips or skids 8, upon which it entie supporting surface. These skids are preferably two in number and the organization is such. that the length ofpipe supported upon the stool comes to position and advances to the inverting apparatus, the skids 8 extend in the direction of the length of the conveyor tables and perpendicular to. the rollers 5 (and to the rollers 4- also) wh1ch constitute the tables' By such particular provision the advance of theladen stool to the inverting apparatus is' facilitated.

When the length of pipe has been shaped and rests upon its stool 6, aboard 9 is laid uponits ,upper end: This board is of substantially the same outline with stool 6, it

may however be formed without a cylindri.-.

cal boss, snch as'the boss 7 of the 'stool. It is'provided with stripsvlO of thesame character as and adapted to, serve similar ends as the skids 8 of stool .6. Vihen the board 9 is applied the Strips lOare uppermost, and

the board is applied in such position that they extend in parallelism with the skids 8. The cradle is so proportioned that thespace between its opposite sets ofrollers a: is slightly greater than the over-all distance'from the lower surface of -skid's 8 to the uppersur face of stripslO. a r v In operation, when .a length of pipe has been shaped and rests upon a'stool 6, a board 9 is laidupon it, properly centeredand with its stripslO extending in the direction indicated. The length of pipe is then advanced over the rollers 5 of-the feed table from left to right, as seen in Figs. 1, TI, and 111, until it comes ,to the position shown in Figs. 11 and 111 in the cradle 1, previously swung to the position to receive it. In this position the stool has passed from the rollers' 5and rests wholly on the rollers eat the then. lower end of the cradle 1 and the cylindrical face of the length of pipe has come to position with-,

vinthe seat 8. The cradle then is. swung clockwise onQits trunnions, as seen in Figs. 11 and 111, through a half revolution. In this turning the seat 3 underlies and supports the length of pipe, and as the cradle comes to its alternate vertical position the inverted pipe'com'es to rest on its smaller end, now the lower end, and upon board 9.

Board 9 in turn rests on the rollers l of the opposite end of the cradle. The slight longitudinal movement ofthe length of pipe,

incident to its inversion, has had no effect to injure it. When so overturned, the length of pipe resting on board 9 is run out on rollers to the right, andv the stool 6 is removed from its then upper end. The length of pipe T then remains in desired position for further dealing with it.

When the inverted pipe has been run out upon. the table to the right, the cradle may be turned back counter-clockwise toits initial position, ready to receive another length of pipe. The inverting apparatus is adapt ed to operation at relatively high speed, so as length and'adapted to swing between opposite positions in which'itstands vertically and open in oneor the other of two opposite directions, its center of gravity being remote from the trunnionei i i i e ti n to ar such open side. 1 I i In te imo y wh I'ha h e n o Se my hand WALTER QMAY- EWQ 

